Questions Asked on
September 6, 2015

  1. Biology

    1) Large/tough seeds act as a selection pressure on what trait? a. Large bills b.Large feathers c.Dark feathers d.Long tails 2) What causes the change in bill depth between 1976 and 1978? a.The lack of rain b.The persistence of only larger seeds

    asked by Need Help Urgent
  2. Algebra

    Find the values of a^2 + b^2 and a^4 + b^4 when a + b =5 and Ab = 4

    asked by Noor
  3. Algebra

    If 2ab + 5cd = 5 and abcd = 1, what is the value of 4a^2b^2+ 25 c^2d^2

    asked by Noor
  4. Algebra

    What must be added to x^2 + 10x +23 to make it a perfect square?

    asked by Noor
  5. Algebra

    Express 81p^2 - 49q^2 as products of two terms.

    asked by Noor
  6. Physics

    Instructions for finding a buried treasure includethe following: Go 736.4 paces at 130◦, turn to 199◦and walk 134 paces, then travel 157 paces at 195◦. Find the magnitude of the resultant displacement from the starting point. Answer in units of

    asked by Camila Calero
  7. Physics

    A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 26.6 m/s. At the same time, it has a horizontal velocity of 55.9 m/s. At what speed does the vehicle move along its descent path? Answer in units of m/s. At

    asked by Camila Calero
  8. organic chemistry

    Which has higher boiling point? A. Alkenes B. Alkadienes I think my answer would be A because it contains 1 double bond (1 pi bond)

    asked by fay
  9. Microsoft word 201

    9. Andrea needs to format the legend on her chart. She clicks on the chart to select it. Which of the following options appears only when a chart is selected? A. Insert B. Review C. Chart Tools D. Page Layout

    asked by Lisa
  10. microsoft 2013

    10. David has a small business and is working on an Excel worksheet to help manage his inventory. David realizes cell E14 has the wrong output. To check the problem, David should first select cell E14 and look at the _______ to check the formula. A. range

    asked by Lisa
  11. microsoft 2013

    19. Which of the following identifies the patterns used for each data series in a chart? A. Data point B. Data series C. The horizontal and vertical axes D. Legend

    asked by Lisa
  12. micosoft 2013

    20. Which of the following processes should Angel use to merge cells A1:D4 to create a title? A. Highlight cells A1:D4, click on the Home tab, and click on the Wrap text icon in the Alignment group. B. Highlight cells A1:D4, right-click and select Format

    asked by Lisa
  13. Geography

    "As stormwater travels faster in creeks, it would enter the ocean at a faster rate, therefore, having the potential to strip away sand and erode the shoreline" Is this correct?

    asked by Isabelle
  14. govt high shool

    AlgebraWhat is compliment of 72degree 40 min

    asked by VIKASH1
  15. Statistics

    In country A, the Index of Qualitative Variation (IQV)for an exhuastive survey of religious beliefs is 0.25.  For country B, the IQV is 0.75.  What can you infer about the different dispersion of religions

    asked by Zam
  16. Science

    If one third of 100 g of 27% aqueous sugar solution is taken in a beaker and 10 g of sugar is added to it, the concentration of the resulting solution will be

    asked by Sannat
  17. Math

    The distance between two numbers on the number line is 15. If one of the numbers is 5, what are the two possibilities for the other number?

    asked by carlos
  18. Statistics (Percentile, Decile, Quartile)

    Please refer to the following table: Number of Cellular Phones  in Household: DECILE 1 - 1.00 2 - 1.00 3 - 1.00 4 - 1.00 5 - 2.00 6 - 2.00 7 - 3.00 8 - 3.00 9 - 4.00 (a)

    asked by Zam
  19. Operating System

    How would you rank the principle of concurrency? Explain the design issues for which the concept of concurrency is relevant.

    asked by Monique
  20. physics for Science

    2) You take the following measurements for the distance a toy car travels in 10 seconds during each 5 trials: 157cm, 175cm, 162cm, 168cm, 187cm. What are the relative uncertainties of the distance and time measurements? Which measurement is the most

    asked by Alessandra Romano
  21. math

    the elevation of a tower from a point on the ground is 30 at a point on the horizontal line passing through the foot of the tower and 100 metres nearer it, the angle of elevation is 60 find height of the tower and the distance of the first point from the

    asked by sonia
  22. Caculus

    Find the limit of f(x)=1/(x-1) as approaches 1 think inifnite limit

    asked by Collins
  23. maths

    if it takes 10 men 6 months to build a house, how long will it take one man?

    asked by kerry
  24. science

    a rocket is launched vertically at a height of 4km above the earths surface calculate the maximum height above the ground level

    asked by agnes
  25. Chemistry

    What is the difference between a chemical change and a chemical reaction?? My answer: A chemical change leads to a solidifed chemical reaction but more or less they are the same thing because it's a change in which one or more pure substances are converted

    asked by Sam
  26. Pre-Calculus HELP!

    change the polar equation r=5/1+cos(theta) to rectangular form. How do I do this? Thank you! :)

    asked by Ellie
  27. Chem

    A carless chemistry student pours 200 grams of methanol, a flammable substance into the sink. Another careless chemistry student causes the bad situation to get even worse by dropping a lit match into the sink. The metanol burns completely with 300 grams

    asked by Sara
  28. Chemistry

    when heated, sulfuric acid will decompose into sulfur trioxide and water. Write a chemical equation, using words, to represent this chemical reaction. Identify reactants and products. (I'm having trouble identifying the reactants and products & writing the

    asked by Sam
  29. Maths

    Prove: (1+tan21)(1+tan28)(1+tan24)(1+tan17)=4

    asked by Rabinprakash
  30. life science

    investigation to determine whether expired air contains carbondioxide

    asked by charles
  31. Math

    Express 81p^2 - 49q^2 as products of two terms.

    asked by Noor
  32. sita college

    It took 20 seconds for a certain volume of oxygen to effuse through an orifice(small opening) at 298K. How long will it take the same volume of each of the following gases to effuse through the same orifice at the same temperature?. The gases are hydrogen,

    asked by aweda
  33. Math

    What must be added to x^2 + 10x +23 to make it a perfect square?

    asked by Noor
  34. Math

    If 2ab + 5cd = 5 and abcd = 1, what is the value of 4a^2b^2+ 25 c^2d^2

    asked by Noor
  35. Math

    Find the values of a^2 + b^2 and a^4 + b^4 when a + b =5 and Ab = 4

    asked by Noor
  36. physcial science

    a student drops an object out of the window of the top floor of a high rise dormitory, how fast is the object traveling when it strikes the ground at the end of 3.4s

    asked by Anonymous
  37. chemistry

    It took 20 seconds for a certain volume of oxygen to effuse through an orifice(small opening) at 298K. How long will it take the same volume of each of the following gases to effuse through the same orifice at the same temperature?. The gases are hydrogen,

    asked by JOHN
  38. Islamic study

    how is the islamic calendar different from the one we use

    asked by Noor
  39. Islamis study

    What is the significance of month of zill - hajj

    asked by Noor
  40. Physics

    A radar station locates a sinking ship at range 16.0 km and bearing 136° clockwise from north. From the same station, a rescue plane is at horizontal range 19.6 km, 155° clockwise from north, with elevation 2.35 km.

    asked by C
  41. life orientation

    what are four environmental issues that cause ill health in our community

    asked by makhosi
  42. Physics

    An unmarked police car traveling a constant 90 km/h is passed by a speeder traveling 128 km/h. Precisely 1.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.80 m/s2 , how much time passes

    asked by Anonymous
  43. Algebra

    Your friend claims that she has a bag of 30 coins containing nickels, dimes, and quarters. The total value of the 30 coins is $3. There are twice as many nickels as there are dimes. Is your friend correct? Explain your reasoning

    asked by Anne
  44. Calculus using the first derivative

    Y=e^x differentiate using the first principle

    asked by Edward
  45. math

    A man facing north turns to face south-west .Through how many degree did he turn if a. he turned clockwise b. he turned anti-clockwise

    asked by althea alli
  46. Physics

    Can you help me understand the graphic relationship between d vs t, v vs t, and a vs t?

    asked by Krista
  47. math(elmntry euclidean geometry)

    The sum of the angles of a quadrilateral is 360°. Find the conditional, draw a diagram, and state the given and conclusion. CONDITIONAL FORM: If it is the sum of the angles of a quadrilateral, then it measures 360°. DIAGRAM: Not shown, but pictures a

    asked by David
  48. Macroeconomics

    Suppose there is a temporary but significant increase in oil prices in an economy with an upward-sloping Short-Run Aggregate Supply (SRAS) curve. If policymakers wish to prevent the equilibrium price level from changing in response to the oil price

    asked by Traci
  49. financial literary

    Floyd employer purchase a health insurance plan that cost 825 per month Floyd page 105 toward the plan each month what is the annual value of the employer's contribution?

    asked by jessy
  50. Math

    PLEASE HELP What is 6x3 / 9 - 1? I got 6 x 3 = 18 / 9 - 1 = 1 But for the answers it only 2 3 5 6 no 1 :((

    asked by Lee
  51. Math and exopents

    Given w = 10. w + w (12 - 2*2 * 3) * 7? Can some one help? the answers are: 73 12 6 3 but none of my calculations are 73, 12, 6 or 3 :(

    asked by Lee
  52. physics

    An object traveling 339 m/s strikes a 2nd object and comes to rest 24 cm inside of the 2nd object (which does not move). What is the 1st object's average deceleration (m/s/s)?

    asked by Olga
  53. physics

    A photographer in a helicopter ascending vertically at a constant rate of 1.2m/s accidentally drops a camera out of the window when the helicopter is 46m above the ground. How long will it take the camera to reach the ground

    asked by jim
  54. algebra

    Thabos brother is 5 years younger than him.Their combined age is half their sisters age.Their sister is 12 years.How old is Thabo?

    asked by pearl
  55. chemistry

    What assumption did you make about the reaction of KMnO4 solution in those determinations where temp didn't change to allow k to be a constant?

    asked by Frank
  56. stats 200

    . At a college, 72% of courses have final exams and 46% of courses require research papers. Suppose that 32% of courses have a research paper and a final exam. Let F be the event that a course has a final exam. Let R be the event that a course requires a

    asked by edi
  57. Interpersonal communication

    Dale, a minister, and his wife Jan had plans for a “date night.” An emergency arose with a congregational member. Dale calls Jan saying, “I know how much we were both looking forward to our time alone tonight. I just heard from Jose that is wife is

    asked by Christopher
  58. history

    In your opinion, what would have happened had the Founding Fathers chosen to simply modify the Articles of Confederation?

    asked by Sammy
  59. physics

    Estimate the speed in mph with which water comes out of a garden hose using your past observations of water coming out of garden hoses and your knowledge of projectile motion. (Take the inclination angle to be 45°, the initial height to be 1.0 m, and the

    asked by dan
  60. Matg

    Juanita told her dad that she won 80% of the card games she played yesterday. If she won 4 games, how many games did she play?

    asked by Robert
  61. English

    I have to write about an artifact. Could a place be an artifact? Say I went someone and really enjoyed it for a certain reason (Ex: Going to a museum that I really liked.). Could I write about that? or is it not an artifact

    asked by anonymous
  62. physics

    Estimate the speed in mph with which water comes out of a garden hose using your past observations of water coming out of garden hoses and your knowledge of projectile motion. (Take the inclination angle to be 45°, the initial height to be 1.0 m, and the

    asked by Anonymous
  63. Chemistry

    A 78.9g sample of HCN contains 0.290g of H and 4.06g of N. Find the mass of carbon in a sample of HCN with a mass of 3.37 g

    asked by Mark
  64. Physics

    A point charge of 4 μC is placed at the origin. There is an external uniform field E = 400 i N/C. What is the net force on a 5 μC charge placed at (5 m, 3 m) ??? i + ??? j N

    asked by Amber
  65. al

    radical 72 x^9 simplify show all work

    asked by algebra 1
  66. physics

    When Babe Ruth hit a homer over the 10 m -high right-field fence 80 m from home plate, roughly what was the minimum speed of the ball when it left the bat? Assume the ball was hit 1.2 m above the ground and its path initially made a 39 ∘ angle with the

    asked by Al
  67. Pre cal

    Simply the equation: 2x^4y^0z^2/(yz^2)^-2 x 2zx^2y^-4 Can you help? I got the denominator to be y^-6 x 2z^5 x x^2 When I solved it, I got x^2y^6/z^3

    asked by bob
  68. phyics

    When Babe Ruth hit a homer over the 10 m -high right-field fence 80 m from home plate, roughly what was the minimum speed of the ball when it left the bat? Assume the ball was hit 1.2 m above the ground and its path initially made a 39 ∘ angle with the

    asked by Al
  69. Algebra

    marie730 the temperature at the end of the day was 64 degrees. the temperature has increased twice during the day,once by 8 degrees and another time by 4 degrees which expression shows what the temperature was at the start of the day 64-8-4 64+8-4******

    asked by Bubbles
  70. math

    A pharmacy claims that the average medication costs $32 but it could differ as much as $8. Write and solve an absolute value inequality to determine the range of medication costs at this pharmacy. |x − 32| ¡Ý 8; The medication costs range from $24 to

    asked by oscar
  71. algebra

    Solve the inequality W > Y plus H all divided by P for H. W divided by P – Y > H W times P divided by Y > H WP – Y > H W + P – Y > H

    asked by oscar
  72. general education 499 wk 4 quiz

    people have claimed that Jamie's paintings have given them the blues. Clearly this cannot be entirely correct. Since many of James paintings contain no blue at all.

    asked by Lisa
  73. algebra

    Solve for n: 21k – 3n + 9p > 3p + 12. n > 2p + 7k – 4 n < 2p + 7k – 4 n > –4p – 7k + 4 n < –4p – 7k + 4

    asked by oscar
  74. Gen edu 499 quiz critical thinki

    The very large increase in allergies over the last thirty years is due to the great success of immunizations administered over this time period. Since immunizations have nearly eliminated life-threatening diseases such as polio, the human immune system

    asked by Lisa
  75. chemistry

    a block of metal has a width of 3.2cm, a length of 17.1cm, and a height of 3.7cm. its mass is 1.3kg. calculate the density

    asked by keith
  76. Chem1412

    The melting point of benzene (C6H6) is 5.5 oC and the heat of fusion at that temperature is 9.87 kJ/mol. How much heat would be required to melt 35.0 g of benzene at 5.5 oC? Atomic weights: C 12.011 H 1.00794

    asked by Kuy
  77. Microeconomics

    Assume that you are considering a 7-night vacation to Fort Walton Beach, Florida, in March. You estimate the total cost of the trip to Fort Walton Beach at $1,250, including discounted airfare. However, a resort at Myrtle Beach, South Carolina, is offering

    asked by Anonymous
  78. English

    1. Time is up. 2. Time is over. 3. Time is finished. 4. Time is off. =============== At the end of a talk show, what can an MC say?

    asked by rfvv
  79. MATH

    Andrea wants to deposit money into a bank account that earns 2.5% simple interest. Use the formula to find the amount of money that she should deposit so that she earns $2500 after 4.5 years. Show and explain your work.

    asked by Ham
  80. Chemistry

    For the combustion of 100. gm of methane, how much heat would be generated?

    asked by John
  81. Math

    Name the 2-digit number: -The ones digit is three times the tens digit. -Both digits are even.

    asked by Zoe
  82. Thermochemistry

    For the combustion of 100. gm of methane, how much heat would be generated?

    asked by Gary
  83. Algebra

    If m1 and m2 are the slopes of two lines, where m1 . m2 =-1, the lines are? the same, or parallel or perpendicular?

    asked by Carole
  84. Physics

    if there was a cyclone, would the speed of the wind make the waves go faster and make constructive interference occur?

    asked by aurora